Jörg Schuhmacher

Diolato-silicat- und -germanat-Ionen aus wäßrig-alkalischer Lösung

Polyol Metal Complexes. 35 [1] Diolato Silicate and Germanate Ions from Aqueous Solution Hydrated lithium salts of monoanionic bis(diolato)-hydroxo complexes of silicon and germanium have been crystallized from alkaline aqueous solutions. The isotypic compounds Li[E(AnErytH–2)2(OH)] · H2O, E = Si (1) or Ge (2), AnErytH–2 = anhydroerythritol dianions, were obtained in the form of pseudomeroedric twins, a fact that may be traced back to orthorhombic pseudosymmetry of the monoclinic crystals. With potassium as the counterion, anhydrous crystals of K[Si(AnErytH–2)2(OH)] were grown by evaporating the solvent almost entirely from the aqueous mother liquors.